EsophagusIntestinal MucosaBarrett EsophagusCapsulesEsophageal NeoplasmsGastric MucosaIntestine, SmallBacterial CapsulesCapsule EndoscopyEsophagoscopyMouth MucosaJejunumJoint CapsuleMucous MembraneLens Capsule, CrystallineEsophageal DiseasesDuodenumIleumCapsule EndoscopesIntestinesColonNasal MucosaMetaplasiaEsophageal StenosisIntestinal DiseasesEsophagectomyEsophagogastric JunctionAdenocarcinomaCeliac DiseaseInternal CapsuleGastroesophageal RefluxIntestinal AbsorptionCardiaPrecancerous ConditionsEsophagoplastyEsophagitisEnterocytesEpitheliumEsophagitis, PepticSucraseStomachEndoscopy, GastrointestinalBiopsyPeristalsisDigestive SystemEsophageal PerforationImmunohistochemistryImmunity, MucosalBacterial TranslocationManometryMicrovilliSwineIntestine, LargeGliadinIntestinal SecretionsCarcinoma, Squamous CellEnteritisCrohn DiseaseEsophageal FistulaColitis, UlcerativeInflammatory Bowel DiseasesEpithelial CellsGlutensBacterial AdhesionEndoscopy, Digestive SystemUlcerDimethylnitrosamineFungal CapsulesGerm-Free LifeRNA, MessengerEsophagoscopesStomach NeoplasmsBowman CapsuleTime FactorsCaco-2 CellsDeglutitionEsophageal Sphincter, LowerRats, Inbred StrainsHypopharynxAdministration, OralEndoscopyCecumPeyer's PatchesHernia, HiatalSubrenal Capsule AssayGastrointestinal TractRats, WistarHydrochloric AcidDeglutition DisordersRats, Sprague-DawleyIleitisMicroscopy, ElectronOlfactory MucosaEsophageal AchalasiaDisease Models, AnimalPermeabilityCausticsDisaccharidasesIntestinal NeoplasmsLiver